Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Mitsubishi Kasei Corp
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Kasei Corp, Nippon Telegraph and Telephone CorpfiledCriticalMitsubishi Kasei Corp
Priority to JP20260784ApriorityCriticalpatent/JPS6178831A/ja
Publication of JPS6178831ApublicationCriticalpatent/JPS6178831A/ja
Publication of JPH0533256B2publicationCriticalpatent/JPH0533256B2/ja